Real-time CSS selector validator and DOM monitor. Track IDs, classes, and attributes instantly.
Users
17
+1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#159K
#133K among extensions
Version
1.0.0
updated 22 Dec 2025
Users
monthly, 10 months
Latest, 16 Oct 2026:17 usersMove the mouse over the chart for any month
Ratings count
monthly, 10 months
Latest, 16 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About valID
valID is a lightweight, powerful developer tool designed to monitor DOM elements in real-time.
Whether you are a frontend developer debugging a UI, a QA engineer tracking element visibility, or an automation engineer validating selectors, valID gives you instant visual feedback without cluttering your console.
Key Features:
● Instant Validation: Add any CSS selector (ID, Class, Attributes, or Complex Selectors) and see immediately if it exists on the page.
Visual Status Indicators:
🟢 Green: Element found.
🔴 Red: Element missing.
⚪ Gray: Pending check.
● Persistent Monitoring: Save your important selectors. valID remembers them and checks their status whenever you return to that URL.
● Smart URL Cleaning: Automatically strips dynamic query parameters (like session IDs or tracking codes) to ensure your monitors don't break when links change.
● Draggable Floating Widget: A clean, non-intrusive overlay that floats on top of your page. Move it anywhere to keep your workspace clear.
● One-Click Navigation: Click any monitored tile to instantly open the target URL in a new tab.
Who is this for?
● Developers: Verify that dynamic elements (React/Vue/Angular) are mounting correctly.
● QA Engineers: Quickly check for the presence of critical buttons or forms during manual testing.
● Scraper/Automation Maintainers: Validate selectors before using them in scripts.
Privacy: valID runs entirely locally on your machine. No data is sent to external servers.